<template>
  <div>
    <template v-if="hasFile" v-for="(file, fileKey) of [innerFile || {}]">
      <a-input
        :key="fileKey"
        :readOnly="true"
        :value="file.name"
      >

        <template slot="addonBefore" style="width: 30px">
          <a-tooltip v-if="file.status === 'uploading'" :title="`上传中(${Math.floor(file.percent)}%)`">
            <a-icon type="loading" />
          </a-tooltip>
          <a-tooltip v-else-if="file.status === 'done'" title="上传完成">
            <a-icon type="check-circle" style="color:#00DB00;" />
          </a-tooltip>
          <a-tooltip v-else :title="file.message||'上传失败'">
            <a-icon type="exclamation-circle" style="color:red;" />
          </a-tooltip>
        </template>

        <span v-if="file.status === 'uploading'" slot="addonAfter">{{ Math.floor(file.percent) }}%</span>
        <template v-else-if="originColumn.allowDownload !== false || originColumn.allowRemove !== false"
                  slot="addonAfter">
          <a-dropdown :trigger="['click']" placement="bottomRight">
            <a-tooltip title="操作">
              <a-icon
                type="setting"
                style="cursor: pointer;" />
            </a-tooltip>

            <a-menu slot="overlay">
              <!-- <a-menu-item @click="handleClickPreviewFile">-->
              <!--  <span><a-icon type="eye"/>&nbsp;预览</span>-->
              <!-- </a-menu-item>-->
              <a-menu-item v-if="originColumn.allowDownload !== false" @click="handleClickDownloadFile">
                <span><a-icon type="download" />&nbsp;下载</span>
              </a-menu-item>
              <a-menu-item v-if="originColumn.allowRemove !== false" @click="handleClickDeleteFile">
                <span><a-icon type="delete" />&nbsp;删除</span>
              </a-menu-item>
            </a-menu>
          </a-dropdown>
        </template>

      </a-input>
    </template>
    <a-upload
      v-show="!hasFile"
      name="file"
      :data="{'isup': 1}"
      :multiple="false"
      :action="originColumn.action"
      :headers="uploadHeaders"
      :showUploadList="false"
      v-bind="cellProps"
      @change="handleChangeUpload"
    >
      <a-button icon="upload">{{originColumn.btnText || '点击上传'}}</a-button>
    </a-upload>
  </div>
</template>

<script>
import JVxeCellMixins from '@/components/jeecg/JVxeTable/mixins/JVxeCellMixins'
import { ACCESS_TOKEN } from '@/store/mutation-types'
import { getFileAccessHttpUrl } from '@api/manage'

export default {
  name: 'JVxeUploadCell',
  mixins: [JVxeCellMixins],
  props: {},
  data() {
    return {
      innerFile: null
    }
  },
  computed: {
    /** upload headers */
    uploadHeaders() {
      let { originColumn: col } = this
      let headers = {}
      if (col.token === true) {
        headers['X-Access-Token'] = this.$ls.get(ACCESS_TOKEN)
      }
      return headers
    },

    hasFile() {
      return this.innerFile != null
    }

  },
  watch: {
    innerValue: {
      immediate: true,
      handler() {
        if (this.innerValue) {
          this.innerFile = this.innerValue
        } else {
          this.innerFile = null
        }
      }
    }
  },
  methods: {

    handleChangeUpload(info) {
      let { row, originColumn: col } = this
      let { file } = info
      let value = {
        name: file.name,
        type: file.type,
        size: file.size,
        status: file.status,
        percent: file.percent
      }
      if (col.responseName && file.response) {
        value['responseName'] = file.response[col.responseName]
      }
      if (file.status === 'done') {
        if (typeof file.response.success === 'boolean') {
          if (file.response.success) {
            value['path'] = file.response[col.responseName]
          } else {
            value['status'] = 'error'
            value['message'] = file.response.message || '未知错误'
          }
        } else {
          // 考虑到如果设置action上传路径为非jeecg-boot后台，可能不会返回 success 属性的情况，就默认为成功
          value['path'] = file.response[col.responseName]
        }
      } else if (file.status === 'error') {
        value['message'] = file.response.message || '未知错误'
      }
      this.innerFile = value
      // issues/I5FTO6 JVxeTypes.upload 文件上传的时候，触发不了事件
      if (value.path) {
        this.handleChangeCommon(fileGetValue(value))
      }
    },

    // handleClickPreviewFile(id) {
    //   this.$message.info('尚未实现')
    // },

    handleClickDownloadFile(id) {
      let { path } = this.value || {}
      if (path) {
        let url = getFileAccessHttpUrl(path)
        window.open(url)
      }
    },

    handleClickDeleteFile() {
      this.handleChangeCommon(null)
    }

  },
  // 【组件增强】注释详见：JVxeCellMixins.js
  enhanced: {
    switches: { visible: true },
    getValue: value => fileGetValue(value),
    setValue: value => fileSetValue(value)
  }
}

function fileGetValue(value) {
  if (value && value.path) {
    return value.path
  }
  return value
}

function fileSetValue(value) {
  if (value) {
    let first = value.split(',')[0]
    let name = first.substring(first.lastIndexOf('/') + 1)
    return {
      name: name,
      path: value,
      status: 'done'
    }
  }
  return value
}

</script>

<style scoped>

</style>